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CVE-2025-9497
Hardcoded Upgrade Decryption Passwords
Medium5.5EPSS 0.33%
- Published
- Updated
- Reserved
- Assigned by
- Microchip
Description
Use of Hard-coded Credentials vulnerability in Microchip Time Provider 4100 allows Malicious Manual Software Update.This issue affects Time Provider 4100: before 2.5.0.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| MicrochipCNA (assigner) | 4.0 | Medium5.5 | CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L/E:P |
| CISA-ADPADP (enrichment) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 4.0 | Medium5.5 | CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
- EPSS (exploitation in 30 days)
- 0.33% · top 74% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: total
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
Microchip · Time Provider 4100
- affected < 2.5.0
What to do
Workaround: Upgrades are only available on a separate management port which should not be connected to an untrusted network. ACLs are available to further restrict access to only trusted addresses.
References (2)
- https://www.microchip.com/en-us/solutions/technologies/embedded-security/how-to-report-potential-product-security-vulnerabilities/timeprovider-4100-hardcoded-upgrade-decryption-passwords (opens in a new tab)vendor-advisory
- https://www.gruppotim.it/en/footer/TIM-red-team.html (opens in a new tab)technical-description
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2025-9497)Record last updated .